Typewriting and like machine



2 Sheets-Sheet l R. E. BENNER TYPEWRITING AND LIKE MACHINE Filed Jan. 4, 1935 INVENTOR ATToRA/EY Dec. E0, 1935.

w, 1935. R. E, BENNER TYPEWRITING AND LIKE MACHINE Filed Jan. 4, 1935 2 sheets-sheet 2 l\ IN VENTOR ATTORNEY Patented Dec. 10, 1935 UNiTE PATENT OFFICE Russell E. Benner, Buffalo, N. Y., assigner to Remington Rand Inc., Buffalo, N. Y., a corporation of Delaware Application January 4, 1935, Serial No. 438

15 Claims.

MyV invention relates to typewriting and like machines and more particularly to card clamping means for cylindrical platens employed in such machines.

One of the main objects of my invention, generally stated, is to provide simple, comparatively inexpensive, and highly eiective card clamping means.

A further object of my invention is to provide improved means whereby a plurality ci independently controlled card clamps may be employed on a single platen to enable a plurality of cards to be successively clamped in position along the platen without disturbing those already clamped in place, and in order to feed at one movement a plurality oi cards arranged side by side on the platen and thereby materially increase the speed at which the cards may be written.

Another object of my invention is to provide an improved card clamp-ing means with which either a front or back feed of the cards may be effected without reversing the platen end-forend or otherwise changing the construction.

A still further object of my invention is to so construct and arrange the parts that the pressure for opening or releasing a clamp will be distributed equally throughout the length of said clamp when the operator depresses a iinger piece projecting through an opening in the platen.

Another object of my invention is to provide improved card clamping and controlling means in which the releasing and clamping movements of the clamp are in a straight line perpendicular to the axis of the platen.

A further object oi my invention is to provide improved means for controlling a card clamp which is particularly adaptable to card clamps f considerable length.

Still another object of my invention is to so construct the card clamping and controlling means that they may be supplied in separate units, and o-ne or more units may be readily applied to a platen in accordance with the requirements or" the user.

To the above and other ends which will hereinafter appear my invention consists in the features of construction, arrangement of parts and combination of devices set forth in the following description and particularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters indicate corresponding parts in the different views:

Fig. l is a longitudinal sectional view through a platen equipped with card clamping devices of my invention, and showing said devices in their clamped position;

Fig. 2 is a front view ci the platen, with parts broken away and in section, showing the clamping devices in their released or opened position;

Fig. 3 is an enlarged fragmentary, horizontal, sectional view taken along the line 3 3 of Fig. 1 and looking in the direction of the arrows at said line;

Figs. 4 and 5 are enlarged, detail, transverse, 10 sectional views of the platen, together with the feed rolls and paper apron, the sections being taken along the lines 4 5 of Fig. 1 and 5-5 of Fig. 2 respectively, and looking in the direction or the arrows at said lines;

Fig. 6 is a front view of a platen equipped with a plurality of independently operable `card clamps of my invention;

Fig. '7 is a front View of a platen, with parts broken away and in section, equipped with another form of card clamping device embodying my invention.

The mechanism of my present invention, with the above mentioned objects in view, as well as others which will hereinafter appear, may be said to be in the nature of an improvement on the construction disclosed in my Patent No. 1,952,053 dated Mar. 27, 1934.

In the present instance I have shown two forms of -my invention, 4one shown in Figs. 1 to 5 in 30 which the pressure for releasing the card clamp is applied to a card clamp 'carrier at two points at equal distances from the center thereof, and

thus said pressure is distributed substantially equally throughout the length of the clamp; and a second form, shown in Fig. 'l in which the pressure for releasing the clamp is applied at one point directly at the center of the card clamp carrier, and again is distributed substantially equally throughout the length of the clamp. Both 40 of these forms of my invention are shown in the present instance embodied in a platen of a No. 10 Remington noiseless machine although they are also applicable to the platens of other Remingt-on machines, and may in fact be employed in platens of typewriting and line machines generally, Wherever found available.

I shall first describe the construction in which pressure for releasing a card clamping member is equally applied to the companion card clamp carrier at two differentpoints at equal distances from the center thereof.

Referring particularly to Fig. 1, it will be seen that the cylindrical platen, which is designated @,S ,a 4Whole by the reference numeral I0, in the 55 the rigidity of the carrier.

present instance comprises an inner metal shell or core II surrounded by a rubber sheath or covering I2, and the usual platen heads I3 fitted into the core II at thev ends thereof and secured thereto by means of screws I4. Each of the platen heads is provided with the usual hub portion I5, bymeans of which the platen I 0 may be connected to they usual finger wheels (not shown) and supported for rotative movement on the carriage of a typewriting machine. When the platen is properly mounted on the carriage of a typewriting machine it cooperates with the usual feed rollers I 6 (Figs. 4 and-5) which extend through openings I1 in a, paper apron I8,

such construction being usual in Remington machines.

The platen is apertured, as at 20, throughout the length thereof to receive one or more series of pins 2|. The apertures may be substantially vconical in shape having the smaller diameter at the inside or core II of the platen to provide a supporting t forV the pins which are adapted for movement through said apertures in lines'perpendicular to the axis of lthe platen and without contact with the rubber covering I2. The pins of each separate series are fastened by any suitable means such as the rivets 22, as shown in Figs.

' 4 and 5, and project from a sheet metal support or carrier 23 of comparatively light stock that is preferably angular in cross section tov add to provided at the right-hand end thereof (Fig. l) with an upwardly bent ear 24 which further increases the rigidity of the structure, and at the lefthand end thereof is provided With a downwardly bent ear 25, both of said ears being formed integral with the base portion of the carrier to which the pins 2| are secured. As shown in Fig.

3 the ear 25 is slotted at 28 to receive and guideV a releasing member, therpurpose of which will hereinafter more clearly appear.

The outer ends of the pins 2| of each series are tapped as indicated at 2l in Fig. 5, to receive headed screws 26 by which a card clamping plate or member 30 is detachably secured to said pins.

In practice it may only be necessary to providev a screw 28 for everyV other pin of a series, as indicated in Fig. l. It is desirable, however, to employ a comparatively close arrangement of the pins 2| .in order that they, together with a stop pin 3| (Figs. 1 and 2) provided at the end of the clamping member, may constitute an effective abutment against which an edge of a card C may bear and be squared as indicated in Figs. 4 and 5, even when a very narrow card is employed. Furthermore, the pins 2| aid in guiding the clamping member 3) inits movement in a direction perpendicular to the axis ofthe platen andin applying an veffective pressure to the clamping plate 3!! from the springs 33 as will l presently appear.

As shown in Figs. 4 and 5 the card clamping member 30 for each series of pins corresponds in Y cross section to a segment of the platen, the Vouter' 30 occupies itsv clamping or closed position asl shown in Fig. 4. By maintaining the surface of Each carrier 23 is the platen substantially smooth and uninterrupted there is the further important advantage that the front edge of the paper apron I8 will not engage the clamping member or members 30 during the Vbackward feeding of a card or work sheet or when the platen receives a clockwise movement as the parts are shown in Fig. 5. Of course the platen may also be turned in an opposite direction without the clamping members 30 fouling on the paper apron.

It will be seen that each member 3|] is secured to its series of pins 2| along the longitudinal median line of said Ymember so that an equal amount of clamping surface is provided on each side of each set of pins 2l to allow cards C to be clamped'on either side of each set of pins. Thus, either a front or Yback feed of a card may be effected as desired.

Since each card clamp and its releasing means is the same as the other or others, Where more than one clamp is employed, the specific description of one will likewise Aapply to the others.

Surrounding each of the pins 2| is a coiled expansion spring 33y that bears at one end against the carrier 23, and at its opposite end bears against the inner surface of the platen core II at an annulus adjacent the smaller inside opening of the conical aperture 29. Such a construction is possible in the present instance since the diameter of each of the apertures 20 at its opening into the platen core is only slightly larger than the diameter of the associated pin 2| to enable,as.pointed out above, said pins to move in said apertures in a direction perpendicular to the axis of the platen and be supported and guided during such movement. 'Ihe construction and arrangement of the parts are such that the effective force of each series of springs 33 is efficiently exerted to normally maintain the companion parts in the Fig. l or Fig. 4 position with the clamping bar pressed with a substantially equal force throughout its length against the e outer Yout away portion 32 of the platen and to 4need only be great'enough to firmly and effectively hold the cards in clamping position, it may be found unnecessary to provide a spring 33 about each of the pins 2 I, and the required number of springs 33 may be distributedin any suitable manner about the pins 2| as shown, for example, in Fig. 1. However, in distributing the required number of springs to maintain an effective pressure, it is advantageous to have the disposition substantially uniform so that the effective force of said springs will be equally and eliciently distributed along the clamping bar substantially throughout its length. Having a uniform distribution of the springs 33, and having each of the clamping members 3|! secured to its series of pins 2| along the longitudinal median line of said member, it will be apparent that the clamping force or pressure of the springs 33 will be equally distributed on either side of each set of pins.

In order to effect a release of each card clamp, I haveprovided, in the present instance, a separate independently operable ringer piece 35 for each unit, and each nger piece in the normal position of the associated parts represented in Fig. 4, has its outer contact face substantially flush with the surface of the platen. Each finger piece moves in an opening 3E provided-inthe platen and is located outside the field of the associated card clamp, or any of them, being preferably offvset Vto Ithe 'left of the associated card clamp, as indicated in Figs. 1 and 2. The relative arrangement of the parts is such that access maybe readily had to a linger piece A35, or each of them, when the platen is in the card receiving position. Directly connected with each finger piece '35 is a stem or `plunger 3l which -is pivoted at its lower end, at 38, to a primary control or releasing 'lever 4B contained wholly within the platen. In order to eifectively maintain the pivotal connection between the key stem and lever, and yet permit a ready disconnection and reconnection between the parts when desired, I prefer to employ a leaf springA lil riveted at 42 to each stem 31, the free end of said spring overlapping the associated lever 43 and the pivot 38 carried thereby.

Referring particularly to Figs. 3 and `5 it will be seen that each lever lill 'is fulcrumed substantially at the center thereof with the aid of a headed pivot pin 43 which pivots in an opening 44 'provided in a pivot post or support 45. This pivot post is pivotally and removably mounted by means of an extended pivot pin 46 removably supported in a pivot bearing, support or hanger 41 which is riveted to the inner wall of the platen core H, as shown in Figs. 1 and '5, thus providing a floating fulcrum for the lever 45 for purposes which will hereinafter appear. At its righthand end the control lever 43 is connected to a bracket 43 by means of a headed pin 50 riveted to said lever and received in a slot 5| provided in the 'bracket 48, The bracket 48 is spot welded, or secured by any other suitable means, to the under side of the carrier 23, at a point substantially midway between the center of said carrier and the right-hand end thereof, and kthus a releasing force applied from the finger piece .35 to the bracket will be transmitted to the carrier through the bracket and transmitted to the clamp 3i) through the pins 2l.

It will be apparent that if pressure is applied to the linger piece it will cause the control lever 4G to turn in a counter-clockwise direction about its pivot 45 `as the parts are depicted in Fig. l, to transmit a force to `the carrier member 23 as pointed out above, and thus tend to effect a `raising or releasing of the clamping member l30. However, in order that the pressure applied .in the depression of the finger piece 35 may fbe distributed substantially equally along the carrier member '23 and likewise along the clamp 36, I have provided a secondary control or releasing lever 52 which is pivotally supported by means of a headed pin 53 on a pivot vpost-54 like the post 45. The pivot post 54 is also removably and pivotally mounted by means of the extended pin 46 in a `support or hanger 55 which is riveted, or secured by Aany other suitable means, lto the inner wall of the core l l in substantial valignment with the support 41 for the control lever 43. This provides a floating fulcrum for the lever 52. The secondary control lever 52 is connected to a bracket 55 by means of a headed pin 51 riveted to said lever and received in an elongated slot .58 provided in the bracket 55, which bracket 55 is spot welded, or secured by any other suitable means, to the under side of the carrier 23 at a point midway between the center -of said carrier and the left-hand end thereof.

Substantially midway between the two fulcrums 43 and 53 for the primary and secondary control levers 4G and 52 respectively, I have connected said levers by means of a headed pin Si) provided in the primary lever'4El and received in an elongated slot (il in the secondary lever '52. Thus, it vwill be seen, when the primary control 'lever 49 iis turned in a counter-clockwise direction V(Fig. l) about its pivot or fulcrum 4S, motion will be transmitted to the secondary lever 52 through the pinl and slot connection Sil, 5l; and it is to be understood that the construction of the above described mechanism is such that when the linger piece 35 is depressed, pressure will be distributed substantially equally throughout the length of the carrier 23 and card clamp 3Q to effect a releasing `ofsaid card clamping member against the tension springs 33, and the parts will change from the closed position of the clamp shown in Fig. 1 to the released position shown in Fig. 2. In distributing the releasing pressure from lthe control levers, in elfect, the primary control lever acts on half of the pins 2l while the secondary control lever 52 simultaneously acts on the remaining pins in the series. 2 and 5 it will be observed that the releasing movement of the card clamping member `S5 is limited by contact of the upwardly bent flange and the ear 24 of the carrier 23 with the inner surface of the core member il. Moreover, it will be understood that this contact also limits the downward movement of the finger piece 35 and plunger 31.

It is to be understood that the card clamping member and all the operating parts associated therewith and described above lie in substantially the same diametrical plane, that the lloating fulcrums for the primary and secondary control levers are in a line substantially diametrically opposite the line of the card clamp 3i?, and that the clamping and releasing motion of the card clamping member 35 is a straight line motion and in a direction perpendicular to the am's of the platen. It will be apparent moreover, that with the floating fulcrum construction described above, the associated operating parts will be self-finding and any binding tendency in operation will be relieved. Furthermore, it is to be understood that the primary and secondary control levers, to-

gether with their various connections etc. conn i stitute a controlling means intermediate the nnger -piece and the carrier for aiding in effecting the above mentioned straight line motion.

In assembling the parts of each clamping unit, each carrier 23, with the parts carried thereby is fitted together before introduction into the platen. That is, the pins 2| with the necessary springs 33, and the levers 46 and 52 with their associated pivot posts and 5ft respectively, are connected to the carrier 23, and this assembly is inserted into the platen which has either one or both of the platen heads 53 removed therefrom. When this unit has been introduced into the platen, the pins 2| on each carrier are inserted from inside the platen through the apertures 2E and the associated clamping plate 35 is then secured to said pins, as described above, by means of thescrews 28. Previous to the insertion of the carrier 23 and its associated parts the supports or hangers 4l and 55 have been riveted to the inner wall of the core l I in their proper positions diametrically opposite the line of the apertures so that after the pins 2i have been inserted into the apertures 2li, or substantially simultaneously therewith, the pivot posts 45 and 54 may be fitted into their respective supports. The extended pivot rod 45 may then be introduced endwise through the openings in each of the supports and its associated pivot post. The finger piece 35 and its associated plunger 3l for each clamping assembly From Figs. a

Cil

i The stem or plunger 18 is removablypivoted at nach of the control levers so isprovided may then be inserted through the opening 36 and connected at its pivot 38 to the companion primary controlling lever 40. The platen heads I3 may then be ttedinto the core Il, and the assembled platen andcard clamping device are then member or device is only one of Y a series of such devices thatmay be mounted within a platen, the number of card clamps used in any particular instance depending in general uponthe length of platen employed. V

Referring particularly to Fig. 'lit vwill be observedrthat the cylindrical platen which is designated as a whole by the reference numeral 65, in the present instance, comprises aninner metal core or shell 66 surrounded by a rubber sheath or Ycovering 61, andthe usual platen heads 68 tted into the core 66 at the ends thereof and secured thereto by any 'suitable means. 'I'he platen heads are provided with the usual hub portions 69, by meansof which said platen may bermounted for the usual rotative movement on the carriage of'a typewriting machine, and when so mounted cooperateswith the usualV feed rollers similar to those described above and shown v position is maintained substantially'iiush with said platen surface by means of a series of springs 15 surrounding the pinsl 1|. At their upper ends the springs 15 bear against the inner surfaceof the platen core 66 onv an annulus adjacent each aperture `12 and at their lower ends bear against the carrier member 13. The carrier member 13 is similar to the carrier member 23 and like said member is angular in cross section and provided at the left-hand end thereof with a downwardly bent ear 16 which is slotted to receive and guide a control member as will hereinafter more clearly appear. f

In order to effect a release of each card clamp,

VI have provided a finger piece 11 mounted upon a stem or plunger 18, and fitting in an opening 1.1a in the platen surface to lie in normal clamping position, substantially flush with said surface.

19 to a control Ylever 88, said pivotal connection being releasably maintained by means of -a leaf spring 8| riveted to therside of said plunger 18. As thus far described the construction'shown in Fig. 1 is similar to that disclosed in the remaining figures and descrihcedv above.

a -raisedr'portion' .82 on-theV lower edge thereof 'which'is adapted to bearagainst the innerV sur-V A faceof the platenrshell or'core 66 toiprovide a floatingfulcrum for saidV lever." This'raised -13 substantially at the center thereof.

with

portion 82 is substantially midway between the pivot 19 at the left-hand end of the lever 80,

and a pivot 83 at the right-hand end of said lever. The pivot 83 is the means by which the control Ylever 88 is connected to a bracket 84 which is spot welded, or secured by any other suitable means, to the under side of the carrier The above described construction is such that when the finger piece 11 is depressed, the control lever will be turned in a counter-clockwise direction about the fulcrum 82 to effect a raising of the clamping member 10 against the tension of the springs 15. This releasing motion ofthe clamping member may be limited by the provision of a pair of stop or limiting pins 85 which may be mounted upon the carrier 13. As shown in Fig. '1 when the carrier member is raised or moved in a releasing direction, the tops of the stop pins 85 will contact the inner surface of the platen shell 66 and thus limit releasing movement. When the operator removes his nger from the finger piece 11, the parts will return to the position shown in Fig. '7 due to the effectv of the springs 15. The control lever 8B is resiliently held in its normal Fig. 7 position with the fulcrum portion 82 thereof contacting.' the shell t6V by means of a spring 86 surrounding a pin 81 which projects downwardly from the under sideof the carrier member 13. bears at its upper end against the carrier 13 and Vat its lower end against the upper edge of the control lever 80 at a point to the leftY of the pivot 83 so that it will resiliently hold the lever 88 from turning in a clockwise direction about.

said pivot 83. Y

It is t0l be understood that the pins 1I guide the clamping member 18 in its straight line opening and Vclosing movements in a direction perpendicular Yto the axis of the platen, and when a releasing pressure is applied to the carrier 13 Vat substantially the center thereof, said pressure single unit when either or both of the` platen heads 68 have been removed. The pins 1| are Y then introduced through the apertures 12 from the inside of the platen, the clamping member 10 is secured to said pins, and the finger piece and plunger are inserted and pivoted to the' control levers.` Each unit is assembled in the Ysame general manner.

From the foregoing description it will be ap- /parent that I have provided improved means whereby a plurality of independently controlled j clampsmay be employed on a single platen to enable aV plurality of cards to be successively clamped in position and fed at one movement, thereby materially increasing the speed at which .cardsjmay'be written. It will also be apparent that'I vhave provided an improved card clamping means which is particularly adaptable to cardv clamps ofconsiderable length capable of use with eitherV narrow or wide` cards or labels, and with which either a forward or backward feed of the card maybe effectedV with equal facility without ,reversing the platen end-for-end or in any manf ner modifying the construction.

It is to be understood that in beth of they embodiments yof my invention the following are The springv 86 some of the features and advantages of the construction:

(a) The construction and arrangement of parts is such that the pressure of the springs is exerted efficiently on a clamp with substantially equal force throughout the length thereof, therebyV allowing small or odd shaped cards to be effectively clamped at any point throughout the length of the clamp and on either side thereof.

(b) When the operator depresses a finger piece projecting through an opening in the platen,l

the releasing pressure thus applied` is equally distributed throughout the length. of the clamp, thereby raising said clamp a uniform distance throughout the length thereof to allow all cards held thereunder to be released simultaneously.

(c) The releasing or clamping movement of any particular clamp is a straight linev motion in a radial plane ofthe platen upon which or in which said clamp is mounted thereby permitting the use of close fitting apertures for the supporting and guiding pinsv andallowing a forward and backward feed clamp to be employed.

(d) By using a fioating fulcrum construction in each instance the associated operating parts are self-finding and there is no liability of the parts binding or becoming cramped in operation.

(e) By the arrangement of the parts in the manner described so that they all operate substantially in the same radial plane in or on the platen there is little liability of cramping or undue binding ofthe parts in their operation.

(f) Due to the fact that the control levers for releasing the clamp extend longitudinally of the platenA and withinl it comparatively long leversy may be employed for effectively releasing the clamp to an equal extent throughout the length thereof as above pointed out.

(g) The construction and arrangements of the parts, moreover, are such as to enable them, in themain, to be assembled outside of they platen and be readily introduced therein.

Various changes may be made in` the construction and certain features thereof may be employed without others, Without departing from my invention as it is ,defined in theaccompanying claims.

What I claim as new andv desire to secure by Letters Patentis:

1. The combination of a hollow cylindrical platen having openings therein, a carrier disposed within said platen, a series of pins on said carrier which project through said openings in,

the platen, a card clamp carried by said pins springs surrounding said pins and exerting theirl force against said carrier, a finger piece,.and con-,-V trolling means intermediate said finger piece and carrier for imparting a straight line movement to the latter against the force of said springsto release the card clamp, said last mentioned means comprising interconnected levers controlled by said finger piece and acting on said carrier.

2. I 'he combination of a hollow cylindrical platen having openings therein, a carrier disposed within said platen, a series of pins on said. carrier which proj ect through said openings in the platen, a card clamp carried by said pins, springs surrounding said pins and exerting their force against said carrier, a finger piece, and controlling. means intermediatesaid finger piece and carrier for imparting a straight line movement" to the latter against the force of said; springs to release the card clamp, said last mentioned means comprising a lever controlled by said finger piece and acting on said` carrier, and a second lever controlledby said first lever and acting on said carrier.

3. The combination of a hollow cylindrical platen4 having openings therein, a card clamp substantially iiush with the surface of said platen, 5 supportingV and guiding pins attachedA to said clamp and extending through said openings in said platena finger piece, and controlling means intermediate said :fingerl piece` and said; supporting pins for imparting a straight line motion to said pins tov move saidclamp, said, controlling meansy comprising interconnected levers controlled` by: said finger piece and acting on` said supporting pins.

4. The combination of a hollow cylindrical platen having openings therein, a card clamp substantially flush with the surface of said platen, supporting and guiding pins attached to said clamp and extending through said openings in saidplaten, a; finger piece, and controlling means intermediate said'finger piece and said supporting pins for imparting a straight line motion to said pins to move said cla-mp, said controlling means comprising a lever controlled by said finger piece and acting more directly on half of said supporting pins, and a second lever controlled by said first lever and acting more directly on the remainder of said supporting pins.

5. Thek combination of aV hollow cylindrical platen having openings therein, a card clamp substantially flush with the surface of said platen, supporting and guiding pins attached t0 said clamp and extending through openings in said platen, a nger piece, and controlling means intermediate said finger piece and said supporting pins for imparting a straight linemotion to said pins to move said clamp, said controlling means comprising a lever controlled by said finger piece and acting more directly on half of said supporting` pins, andA a. second lever. controlled by said first lever and acting. more directly on the remainder of said supporting pins, both of said levers beingfulcrumed on the inside of said hollow platen ina line diametrically opposite the line ofsaid supporting pins and card clamp. r

6. The combination ofA al hollow cylindrical platen having openings therein, a card clamp substantially flush with the surface of said platen, supporting and guiding pins attached tov said clamp and extendingv through said openings in said platen, resilient means holding said clamp in clampingposition, a finger piece, and controlling means intermediate said finger piece and said supporting. pins for imparting a straight line motion to said pins to release said clamp, said controlling means comprising interconnected levers controlled by said nger piece and acting on said supporting; pins.

7. The; combination of a ,hollow cylindrical platen having openings therein, a card clamp substantiallyv flush with the surface of said platen, supporting; and guiding pins attached to said clamp and extending through openings in said platen, resilient means holding said clamp in clamping position, a finger piece and controlling A dependently= releasable card clamps` carried by V separate carrier for each clamp disposed Ywithin the platen; a series of pins on each carrier that project through said openings in the platen,'one of the card clamps being xed to each series of said pins; a separate and independently operable nger piece for each clamp; controlling means 'intermediate each finger piece and carrier for imparting a straight line movement to the latter against the force of said springs, said controlling means for each clamp comprising interconnected levers controlled by the associated finger piece and acting on the companion carrier, each of said levers being fulcrumed on a'pivot post which is pivoted in a hanger, andthe hangers for all of said'pivot posts being secured to the inner Wall of said platen in a lineV diametrically opposite the line of the card clamps,fand a single pivot rod passing through all of said pivot posts and hangers and extending substantially throughout the length of the platen.

9. The combination of a hollowV cylindrical platen having openings therein, a carrier disposed within said platen, a series of pins on said carrier which project through said openings in the platen, a card clamp carried by said pins, springs surrounding said pins and exerting their force against said carrier, a nger piece-that projects through an opening in the plat-en, and controlling means intermediate said nger piece andr said carriervfor imparting a straight line movement to said carrier to release saidl card clamp,V

said controlling means comprising a single lever pivotally connected to said carrier at the center thereof and fulcrumed line of said clamp.

l0. The combination of a hollow cylindrical platen having openings therein, a carrier disposed within said platen, a series of pins on said Y carrier which project throughA said openings in the platen, a card clamp carried by said pins,

springs surrounding said pins and exerting their force against said carrienal finger Vpiece that projects through an opening in the platen, and controlling means intermediate said finger piece and said carrier for Aimparting a straight line movement to said carrier to release said card clamp,'said controlling means comprising a single lever pivotallyconnected to said carrier at thev center thereof and fulcrumed on the inner surface of said platen at a point diametrically op-V rectilinear movement into and out of contactV withV the platen, springs which exert their forceV on` said card clamp in the general direction of itsirectilinear movement, a finger-piece for releasing said clamp, and releasing :means controlled by said finger piece and comprisingV a lever which extends longitudinally of and within the platen and is fulcrumed thereon, said lever moving substantially in the plane'of movement of'V said clamp. K V12. The combination of a rotativev platen havingopening's therein, a series ofi pins extendingV radially of the platen through said openings, a cardrclamp extending longitudinally of the platen and connected along themedian'line thereof to said pins so that the card clamp extends in subonY the inner surface offV said platen at a point rdiametrically opposite theV stantially equal amounts on opposite sides of said series of pins and cooperates with a card introduced beneath the clamp from either direction and effects either a forward or backward feed of the card, said clamp being mounted for rectilinear movement radially of the platen into and out of clamping position, springs exerting their force on said clamp in the general direction of its movement, and means for releasing said clamp against the force of said springs comprising a lever extending longitudinally within said platen and fulcrumed thereon, said lever moving substantially in the same radial plane as said clamp, and a linger piece for controlling said lever.

13. VThe combination of a rotative platen havving openings therein, a series of pins extending radially of the platen through said openings, a card clamp extending longitudinally of the platen and connected along the median line thereof to said pins so that the card clamp extends in substantially equal amounts on opposite sides of said series of pins and cooperates with a card introduced beneath the clamp from either direction and effects either a forward or backward feed of the card, said clamp being mounted for rectilinear movement radially of the platen into and out of clamping position, a carrier contained within and extending longitudinally of the platen and to which said pins are affixed, springs surrounding said pins and bearing against said carrier and against the platen, and means for releasing said clamp against the force of said springs comprising a `lever extending longitudinally within said platen and fulcrumed thereon,

said lever moving substantially in the same radial plane as said clamp, and a nger piece for controlling saidflever.

14. The combination of a rotative platen having openings therein, a series of pins extending radially of the platen through said openings, a 40 card clamp extending longitudinally of the platen and connected along the median line thereof to said pins so that the card clamp extends in substantially equalamounts on opposite sides of said series of pins and cooperates with a card introduced beneath the clamp from either direction and effects either a forward or backward feed of the card, said clamp being mounted for rectilinear movement radially of the platen into and out Vof clamping position, a carrier contained within and extending longitudinally of the platen and to which said pins are affixed, springs surrounding said pins andV bearing against said carrier and against' the platen, and means for releasing said clamp against the force of said springs comprising a lever contained within and extending longitudinally of the platen and connected to said carrier near one end portion of the latter, a nger piece for controlling said lever, and a second lever controlled in its movement by said first mentioned lever and connected with said carrier near the other end portion of the latter. i

15. The combination of a rotative platen having openings therein, a series of pins extending y radially of the platen through said openings, a

I card clamp extending longitudinally of the p'laten and connected along the median line thereof to said pins so that the card clamp extends in substantially equal amounts on opposite sides of said series of pins Vand cooperates with a card'introduced beneath the clamp from either direction and effects either a forward or backward feed of the card, said'clamp being mounted for rectilinear movement radially of the platen into and out of clamping position, a carrier contained within and extending longitudinally of the platen and to which said pins are aixed, springs surrounding said pins and bearing against said carrier and against the platen, and means for releasing said Clamp against the force of said springs comprising a lever Contained Within and extending longitudinally of the platen and connected to said carrier near one end portion of the latter, a

nger piece for controlling said lever, and a second lever controlled in its movement by said first mentioned lever and connected With said carrier near the other end portion of the latter, the planes of movement of said levers being substantially in the plane of movement of said carrier and clamp. v

RUSSELL E. BENNER. 

